
Mining operations and desert infrastructure dominate this mid-century survey of southeastern California. The Cargo Muchacho Mountains serve as a focal point for historic mineral extraction, showcasing concentrated claims such as the American Girl Mine, La Colorado Mine, and the Tumco (Hedges (Site)) location. These sites, along with the Hedges Cem, provide a clear window into the late 19th and early 20th-century gold mining booms that once animated this arid landscape.
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2 editions found
1903 · Yuma
USGS Topo · 1:125,000
1905 · Yuma
USGS Topo · 1:125,000
1907 · Holtville
USGS Topo · 1:125,000
1940 · Yuma
USGS Topo · 1:62,500
1942 · El Centro
USGS Topo · 1:250,000
1942 · Yuma
USGS Topo · 1:250,000
1942 · Blythe
USGS Topo · 1:250,000
1945 · Picacho Peak
USGS Topo · 1:62,500
1945 · Picacho
USGS Topo · 1:62,500
1945 · Yuma
USGS Topo · 1:62,500